Malvern Zetasizer Nano series Self Installation And Quick Start Manual page 10

Size test
Take a square plastic cuvette (not a glass one) from the consumables pack.
a.
Fill it with between 1.0mL and 1.5mL of the supplied Installation Sample (DTS1050) from the
b.
syringe, as follows.
Tilt the cuvette and allow it
c.
to fill slowly:
To stop bubbles forming, let the
sample flow down the inside.
Zeta Potential test
Take a supplied Folded capillary cell and rinse this with ethanol or methanol. A syringe or wash
a.
bottle can be used. Use sufficient fluid to just wet the surface of the cell and the electrodes.
Flush de-ionised water through the cell five times. To do this, insert a syringe of water in one port,
b.
an empty syringe in the other. Flush the syringe's contents through the cell into the empty syringe.
Invert the cell :
c.
1
Slowly inject the DTS1050 sample
d.
from its syringe into the cell, filling the
U tube to just over half way
Check no air bubbles form in the cell.
e.
Tap the cell gently to dislodge any that
do form.
The sample depth should be
d.
between 10 and 15 mm.
Max: 15mm
Min: 10mm
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Turn the cell upright and
f.
continue injecting slowly
until the liquid reaches the
bottom of the 'luer' outlet
.
2
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.
Check again for bubbles
g.
in the cell. Tap the cell
gently to dislodge these.
Push the lid securely onto
e.
the cuvette:
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h.
i.
3
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j.
6
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Check that the elec-
trodes are com-
pletely immersed.
Remove the syringe
and insert a cell
stopper in each
port:
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Remove any liquid
spilt on the elec-
trodes.